BA 963 then BA 584 at Heathrow
Hamburg → London → Milan Linate
Timetable, London time
13:40BA 963 from Hamburg at the gate
13:15BA 584 to Milan Linate leaves the gate
23 h 35 apart on the timetable, overnight
BA 584 leaves 23 h 35 after BA 963 arrives on the timetable: more than half a day, so not a connection we count.